640-911 Questions And Answers
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Exam Name: Introducing Cisco Data Center Networking
Updated: 2021-03-04
Q & A: 209
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Question No : 1
Which option includes the two devices that can be connected when a Cisco Fabric Extender Transceiver is used?
A. Server to Cisco Nexus 2000 Series Fabric Extender
B. Server to Cisco Nexus 5010 Switch
C. Server to Cisco Nexus 5548 Switch
D. Cisco Nexus 2000 Series Fabric Extender to Cisco Nexus 5500 Switch
A. Server to Cisco Nexus 2000 Series Fabric Extender
B. Server to Cisco Nexus 5010 Switch
C. Server to Cisco Nexus 5548 Switch
D. Cisco Nexus 2000 Series Fabric Extender to Cisco Nexus 5500 Switch
Answer: D
Question No : 2
If a Nexus switch receives a frame and no MAC table entry is found for the destination, what will take place?
A. The frame will be dropped.
B. The frame will be flooded.
C. The sender will be notified.
D. The destination address will be learned.
A. The frame will be dropped.
B. The frame will be flooded.
C. The sender will be notified.
D. The destination address will be learned.
Answer: B
Question No : 3
An engineer wants to repurpose a Cisco Nexus 7010 Switch for use in a lab and needs to restore the switch to factory defaults. Which two commands are required? (Choose two.)
A. write erase boot
B. write erase debug
C. copy running-config startup-config
D. reboot
E. reload
F. copy startup-config running-config
A. write erase boot
B. write erase debug
C. copy running-config startup-config
D. reboot
E. reload
F. copy startup-config running-config
Answer: A,E
Question No : 4
A customer wants to connect to their SAN via Fibre Channel. Which two devices can be used to provide connectivity? (Choose two.)
A. Cisco MDS 9148 Multilayer Fabric Switch
B. Cisco Nexus 7010 Switch
C. Cisco Nexus 5548UP Switch
D. Cisco Catalyst 6509 Switch
E. Cisco Nexus 2248TP GE Fabric Extender
A. Cisco MDS 9148 Multilayer Fabric Switch
B. Cisco Nexus 7010 Switch
C. Cisco Nexus 5548UP Switch
D. Cisco Catalyst 6509 Switch
E. Cisco Nexus 2248TP GE Fabric Extender
Answer: A,C
Question No : 5
Where does Cisco Nexus Operating System store the startup configuration file?
A. RAM
B. flash
C. bootflash
D. volatile
E. NVRAM
A. RAM
B. flash
C. bootflash
D. volatile
E. NVRAM
Answer: E
Question No : 6
At which layer of the OSI model does TCP operate?
A. 1
B. 2
C. 3
D. 4
E. 5
A. 1
B. 2
C. 3
D. 4
E. 5
Answer: D
Question No : 7
For a router to do an IP routing process, which part of a packet must be checked before consulting the routing table?
A. destination IP address
B. source IP address
C. destination MAC address
D. source MAC address
A. destination IP address
B. source IP address
C. destination MAC address
D. source MAC address
Answer: A
Question No : 8
How many IP address ranges are specified in RFC 1918?
A. 1 in Class A, 2 in Class B, and 4 in Class C
B. 2 in Class A, 4 in Class B, and 8 in Class C
C. 4 in Class A, 8 in Class B, and 16 in Class C
D. 1 in Class A, 16 in Class B, and 256 in Class C
A. 1 in Class A, 2 in Class B, and 4 in Class C
B. 2 in Class A, 4 in Class B, and 8 in Class C
C. 4 in Class A, 8 in Class B, and 16 in Class C
D. 1 in Class A, 16 in Class B, and 256 in Class C
Answer: D
Question No : 9
What network device is considered an invisible wire?
A. router
B. hub
C. switch
D. bridge
A. router
B. hub
C. switch
D. bridge
Answer: B
Question No : 10
What are two valid VTP commands? (Choose two.)
A. feature vtp
B. vtp client mode
C. vtp VLAN
D. vtp version
E. vtp static
A. feature vtp
B. vtp client mode
C. vtp VLAN
D. vtp version
E. vtp static
Answer: A,D
Question No : 11
What two commands are used to modify the MAC Table? (Choose two.)
A. no mac-address-table static
B. show address-table
C. mac-address-table aging
D. show mac-address-table
E. address-table static
A. no mac-address-table static
B. show address-table
C. mac-address-table aging
D. show mac-address-table
E. address-table static
Answer: A,C
Question No : 12
At which layer in the OSI stack does the Hypertext Transfer Protocol operate?
A. Layer 1
B. Layer 2
C. Layer 3
D. Layer 4
E. Layer 5
F. Layer 6
G. Layer 7
A. Layer 1
B. Layer 2
C. Layer 3
D. Layer 4
E. Layer 5
F. Layer 6
G. Layer 7
Answer: G
Question No : 13
How many bits are in an IPv4 address?
A. 32
B. 24
C. 8
D. 4
A. 32
B. 24
C. 8
D. 4
Answer: A
Question No : 14
How many bits are used for a subnet ID in an IPv6 address?
A. 48
B. 16
C. 64
D. 128
E. 10
A. 48
B. 16
C. 64
D. 128
E. 10
Answer: B
Question No : 15
Which two layers of the OSI model are combined in the Internet protocol suite application layer? (Choose two.)
A. 2
B. 3
C. 4
D. 5
E. 6
F. 7
A. 2
B. 3
C. 4
D. 5
E. 6
F. 7
Answer: D,E